﻿using MaterialDesignThemes.Wpf;
using Prism.Ioc;
using Prism.Mvvm;
using Prism.Services.Dialogs;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using 基于WPF的电缆采样数据分析系统.Tools.LangugeTool;
using 基于WPF的电缆采样数据分析系统.Tools.MessagePopupTool;

namespace 基于WPF的电缆采样数据分析系统.Service
{
    public class DialogHostService : DialogService
    {
        private readonly IContainerExtension containerExtension;

        public DialogHostService(IContainerExtension containerExtension) : base(containerExtension)
        {
            this.containerExtension = containerExtension;
        }

        public async Task<IDialogResult> ShowDialog(string name, IDialogParameters parameters, string dialogHostName = "RootDialog")
        {
            try
            {
                if (parameters == null)
                    parameters = new DialogParameters();

                //从容器当中去除弹出窗口的实例
                var content = containerExtension.Resolve<object>(name);

                //验证实例的有效性 
                if (!(content is FrameworkElement dialogContent))
                    throw new NullReferenceException("A dialog's content must be a FrameworkElement");

                if (dialogContent is FrameworkElement view && view.DataContext is null && ViewModelLocator.GetAutoWireViewModel(view) is null)
                    ViewModelLocator.SetAutoWireViewModel(view, true);

                if (!(dialogContent.DataContext is IDialogHostAware viewModel))
                    throw new NullReferenceException("A dialog's ViewModel must implement the IDialogAware interface");

                DialogOpenedEventHandler eventHandler = (sender, eventArgs) =>
                {
                    if (viewModel is IDialogHostAware aware)
                    {
                        aware.OnDialogOpening(parameters);
                    }
                    eventArgs.Session.UpdateContent(content);
                };

                return (IDialogResult)await DialogHost.Show(dialogContent, dialogHostName, eventHandler);
            }
            catch (Exception ex)
            {
                MessagePopup.DisplayMessagePopup(LangugeConvertor.GetValue("CauseOfError") + ex.Message);
                throw;
            }

            
        }
    }
}
